From b05e17709caa40c91e06564d4bad206925f252c4 Mon Sep 17 00:00:00 2001
From: Fraser Graham <frasergraham@me.com>
Date: Sun, 27 Apr 2014 00:48:01 -0600
Subject: [PATCH] changes to how acceleration works

---
 robot.go | 19 +++++++------------
 1 file changed, 7 insertions(+), 12 deletions(-)

diff --git a/robot.go b/robot.go
index 928d764..5a25d7f 100644
--- a/robot.go
+++ b/robot.go
@@ -15,7 +15,7 @@ type Robot struct {
 	Name           string      `json:"name"`
 	Message        string      `json:"-"`
 	Stats          Stats       `json:"-"`
-	TargetSpeed    float64     `json:"-"`
+	TargetSpeed    float64     `json:"target_speed"`
 	Speed          float64     `json:"speed"`
 	Health         int         `json:"health"`
 	RepairCounter  float64     `json:"repair"`
@@ -136,11 +136,11 @@ func DeriveStats(request StatsRequest) Stats {
 	s.Hp = int((float64(request.Hp) / 100.0 * (hp_max - hp_min)) + hp_min)
 
 	speed_min := 40.0
-	speed_max := 200.0
+	speed_max := 250.0
 	s.Speed = float64(request.Speed)/100.0*(speed_max-speed_min) + speed_min
 
 	accel_min := 20.0
-	accel_max := 200.0
+	accel_max := 100.0
 	s.Acceleration = ((float64(request.Acceleration) / 100.0) * (accel_max - accel_min)) + accel_min
 
 	wep_rad_min := 5.0
@@ -276,13 +276,13 @@ func (r *Robot) Tick(g *Game) {
 		r.TargetSpeed = r.Stats.Speed
 	}
 
-	if r.TargetSpeed < -1.0*r.Stats.Speed {
-		r.TargetSpeed = -1.0 * r.Stats.Speed
+	if r.TargetSpeed < -0.25 * r.Stats.Speed {
+		r.TargetSpeed = -0.25 * r.Stats.Speed
 	}
 
 	// Are we speeding up or slowing down?
 	increase := true
-	if float32(math.Abs(float64(r.Speed-r.TargetSpeed))) > v.Epsilon {
+	if r.Speed - r.TargetSpeed > v.Epsilon {
 		increase = false
 	}
 
@@ -293,17 +293,12 @@ func (r *Robot) Tick(g *Game) {
 			r.Speed = r.TargetSpeed
 		}
 	} else {
-		r.Speed -= (r.Stats.Acceleration * r.Delta)
+		r.Speed -= (r.Stats.Acceleration * 8 * r.Delta)
 
 		// Dont go too far
 		if r.Speed < r.TargetSpeed {
 			r.Speed = r.TargetSpeed
 		}
-
-		// Cap reverse at 1/4 top speed
-		if r.Speed < (-0.25 * r.Stats.Speed) {
-			r.Speed = (-0.25 * r.Stats.Speed)
-		}
 	}
 
 	// Adjust Heading